SPRINGDALE, Ark. (WDRB) -- A heartbreaking photo of a little boy saying goodbye to his dying sister is touching hearts around the world.

Four-year-old Adalynn "Addy" Joy Sooter died on June 3 in Arkansas following a battle with diffuse intrinsic pontine glioma (DIPG). She had been fighting the brain cancer since November 2016.

The day before she died, their father, Matt Sooter, shared a photo on Facebook of his son Jackson comforting Addy at her hospital bedside. The words he wrote brought tears to the many people who've read them.

"A little boy should not have to say goodbye to his partner in crime, his play mate, his best friend, his little sister. This isn't how it's supposed to be. But this is the broken world we live in," he said in the post.

Sooter said his daughter's condition was rapidly deteriorating. He asked for strength for his son and family. "Pray for Jackson. He doesn't want to leave her side and we won't make him. Pray for us."

Addy died the next day.

The obituary posted by the Epting Funeral Home of Bentonville, Arkansas included a picture of a healthy Addy with long blonde hair and a sundress. The tribute said she "loved princesses, shopping, dancing, and singing. She loved being outdoors and playing with animals. Addy enjoyed spending time with big brother, listening to him read books and playing games."

A celebration of life for Addy was held Saturday.

The family requests that donations be made to the Michael Mosier Defeat DIPG Foundation, the Ronald McDonald House Charities of Arkansas, or the Arkansas Children's Hospital.

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